The signatories to this document include such hardcore radical traditionalists as:
- Dr. John Rao (history professor) who has completly denounced Vatican II and the *Novus Ordo* Mass;
- Chris Ferrara (lawyer, secular not canon) who makes his living bashing the contemporary Church and publicly denouncing Pope Francis;
- Bishop Bernard Fellay, the head of the SSPX, a group that refuses to recognize the validity of Vatican II and the *Novus Ordo" Mass;
- Roberto de Mattei, an Italian journalist who has been described as "a renowned apologist for ultra-traditional Catholicism"
- Joseph Shaw, Chairman of the Latin Mass Society;
- Deacon Nick Donnelly, whose blog was shut down by the bishop of his diocese of Lancaster, England. Deacon Donnelly now contributes to OnePeterFive, a radical traditionalist blog which is in constant conflict with the message of Pope Francis;
- Father Claude Barthe, a radical traditionalist priest and foe of the Second Vatican Council.

